| 项目编号: | 1625146
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| 项目名称: | DEVELOPING A PROCESS-BASED UNDERSTANDING OF THE FACTORS CONTROLLING THE SEASONAL FORMATION OF PEDOGENIC CARBONATE |
| 作者: | Timothy Gallagher
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| 承担单位: | Gallagher Timothy M
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| 批准年: | 2017
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| 开始日期: | 2017-01-01
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| 结束日期: | 2018-12-31
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| 资助金额: | 174000
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| 资助来源: | US-NSF
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| 项目类别: | Fellowship
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | carbonate mineral
; pedogenic carbonate
; seasonal formation
; process drivingpedogenic carbonate formation
; pedogenic carbonate formation
; thorough understanding
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| 英文摘要: | Dr. Timothy M. Gallagher has been granted an NSF EAR Postdoctoral Fellowship to carry out research and education plans at the University of Texas at Austin. The investigation will focus on understanding the seasonal formation of carbonate minerals in soils. The project will consist of three components: laboratory experiments, computer modeling, and application of experimental and modeling results to a geological problem. The anticipated results will be of interest to a wide range of disciplines including those within the earth, biological, and soil sciences. Throughout this fellowship period Dr. Gallagher will actively convey the importance of environmental change to the general public through participation in events such as the University of Texas K-12 oriented Forty Acres Fest. In addition, he will mentor graduate students and develop and supervise independent research projects for undergraduates. Dr. Gallagher will co-teach an undergraduate environmental isotope geochemistry course, developing new assignments designed to expose students to the power and utility of computer modeling.
The research project will take the novel approach of pairing experimental soil manipulations with cutting-edge reactive transport modeling in order to gain a thorough understanding of processes driving
pedogenic carbonate formation. The research plan will include (1) experimental manipulation of soil columns where different seasonal patterns of precipitation are simulated, (2) use of reactive transport models to place the experimental results of the research into a quantitative and predictive framework, and (3) application of the experimental and modeling results to a geologic case study centered on pedogenic carbonate derived paleoelevation histories of Andean uplift. Carbonate minerals in soils are an important archive of past environmental conditions, that is widely used by the scientific community for reconstructing past climatological, ecological and tectonic changes. The accuracy of these paleo-reconstructions is hindered, in large part because the processes controlling the seasonal timing of pedogenic carbonate formation have not been fully characterized. It is expected that this investigation will contribute to this knowledge gap. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/90676
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Timothy Gallagher. DEVELOPING A PROCESS-BASED UNDERSTANDING OF THE FACTORS CONTROLLING THE SEASONAL FORMATION OF PEDOGENIC CARBONATE. 2017-01-01.
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